Foot-valve for pumps



J. H. GIBSON.

FOOT VALVE FOR PUMPS.

(No Model.)

Patented Mar. 14

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JOHN H. GIBSON, OF CANTON, OHIO.

FOOT-VALVE FOR PUMPS.

SPECIFICATION forming part of Letters Patent No. 493,378, dated March14, 1893.

Application filed June 20, 1892. Serial No. 43 7,254. (No model.)

To all whom it may concern:

Be it known that I, JOHN H. GIBSON, a citizen of the United States, anda resident of Canton, county of Stark, State of Ohio, have invented anew and useful Improvement in Foot-Valves for Pumps, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, making part of this specification.

My invention relates to an improvement in foot valves and chambers forpumps the object of which is to provide means for protecting the valvefrom obstructions and to strain impurities from the water or otherliquid to be pumped, and for the discharge of such impurities out of thestraining or filtering chamber.

WVith these ends in view my invention relates to certain features ofconstruction and combination of parts as will be hereinafter decribedand pointed out in the claim.

Figure 1 of the accompanying drawings is a view in perspectiveillustrating my invention, with the cap or cover turned up and back.Fig. 2 is a vertical section.

Referring to Fig. 1, A represents the body or supporting frame which isof the form shown an inverted cone, or substantially so, which isdivided into two compartments B, and O, by the partition D, and isfurther provided with an entrance port E, and an exit port F, throughwhich the fluid may be drawn from the source of supply by the operationof a pump. At the bottom portion of the conical chamber 0, there isprovided an aperture G, through which impurities that have been strainedfrom the fluid, may be discharged; for the purpose of this application,I have shown the aperture closed by a threaded plug H, turned into acorresponding thread in the aperture, but other devices may be providedfor closing and opening the discharge aperture.

In the upper part or face J, is provided an aperture K, in which isplaced a strainer L, having a flange a that rests in the recess 1) fromwhich depends the strainer into the chamber 0. The strainer may beconstructed either of wire gauze or of perforated sheet metal, the lowerend of the strainer is closed with the same material as that used toform the cylinder portion. On the flange a and in the recess 1) isplaced a flat ring valve seat M. An aperture N, is also provided in theface J, through which the fluid passes from under the cap 0, to the exitport F.

P, is a leather plate packing, having an aperture to correspond with theaperture N, in the plate J, and perforations c to correspond with thebolt holes in the flanges R, of the body and the cap 0. From the leatherpacking P, is formed a leather valve S, se-

cured to the packing by the neck portion d,

a metal weight 6 is secured to the back of the valve portion S. Otherforms of valve may be used when preferred. The cap 0 is raised in formof a hood to provide room for the valve to operate; it is also providedwith a flange portion R, and a cross portion f by which the packing isheld in position between the valve and the aperture N.

The prime object of the invention is to provide an inexpensive means bywhich theliquid to be pumped may be freed from sand or other impuritiesthat interfere with the operation of the valve.

In operation the port F, is connected with .the pump pipe, and the portE, with suction or supply pipe, water or other fluid raised by theoperation of the pump will flow into the chamber 0, thence through thestrainer L, through the valve aperture into the chamber T, under the cap0, and out through the aperture N, and port F, the sand, clay and othersubstance falling to the bottom of the chamber C, which may be removedor discharged by opening the aperture G at the bottom of the chamber. Ifthe chamber and strainer shall have become so fouled that they cannot beso cleaned, the cap 0 may be removed, and the valve seat M removed andthe strainer lifted out, after which both the strainer and the chambermay be cleaned.

The suction pipe may be attached to the port F, so as to cause thechamber 0 to be constantly filled with the fluid thus forming an everpresent primer to start with.

Having thus fully described the nature and object of my invention, whatI claim, and desire to secure by Letters Patent, is-

In combination, a valve casing consisting of a conical body havinginletand outlet openings, a partition D, and openings K and N, a tubularstrainer located in said casing and provided with a flange which restsupon the provided with openings coincident with the re casing aroundsaid opening K, a valve-seat openings in the said packing, substantiallyring M, seated upon said flange, a leather as set forth. packing P,seated upon the entire upper end 111 testimony whereof I have hereuntoset 5 of said casing and provided with openings 00- my hand this 17thday of June, A. D. 1892.

incident with the openings N, and K, a valve JOHN II. GIBSON. seatedwithin the opening in the packing cover \Vitnesses: the opening K, andupon the ring M, and a W. K. MLLLER,

hollow cap seated upon said packing P, and CHAS. R. MILLER.

